Hello,
I combined your 2 posts into one.
I have no way of knowing what mobile numbers are registered in Nigeria or any country. Moreover, there isn’t a cell number database where one can check a number’s owner.
The first number (+960..) is a mobile phone from the Maldives ( https://www.howtocallabroad.com/maldives/ ) while the second could be from Russia or Kazakhstan (they both have country code 7). Honestly, I do not recognize the number format after the country code 7. Could be some special service from one of the two countries. Why not call them back to find out who they are?